1、安裝pyqt5(注:測試Python3.6版本可用)
#brew install pyqt
(注:此命令會安裝所依賴的sqlite、python3、python、qt、sip所需軟體)
#cd /usr/local/bin
#rm python
#ln -s python3.6 python
2、第一個helloword.py
#! /usr/bin/python3
# coding = utf-8

import sys
from PyQt5.QtWidgets import QApplication,QWidget
if __name__ == '__main__':
    app = QApplication(sys.argv)
    w = QWidget()
    w.resize(250, 150)
    w.move(300,300)
    w.setWindowTitle('Hello world')
    w.show()
    sys.exit(app.exec_())
3、執行程式
# python helloworld.py

參考:http://www.jianshu.com/nb/4634983